The car starts off right and drives well for a while and then starts acting up, at first it was the throttle body, replaced the throttle body and the same thing still happened, the screen displays the "No Traction" light comes on the the heading says "Service ESC" and "Engine Power Lowered".
Your best bet would be to take your vehicle to a qualified repair shop that knows how to test an not guess as to the problem . Having control modules checked for DTC's - diagonstic trouble codes should always be the first step diagnosing modern automobiles . Replacing parts is not the way to try an fix your car. Would hate for you to replace a part an not have it fix the vehicle . Engine power reduced is associated with the electronic throttle control , no speed sensor .
ENGINE POWER REDUCED
Throttle Actuator Control (TAC) System Description for 3.6L engine or Throttle Actuator Control (TAC) System Description for the 2.4L engine
The engine control module (ECM) is the control center for the throttle actuator control (TAC) system. The ECM determines the driver's intent based on input form the accelerator pedal position sensors, then calculates the appropriate throttle response based on the throttle position sensors. The ECM achieves throttle positioning by providing a pulse width modulated voltage to the throttle actuator motor. The throttle blade is spring loaded in both directions, and the default position is slightly open.
002 Electronic Throttle Operation
Drive by Wire Function and diagnostics by Wells
Reduced power mode will cause traction control system to be shut off turning on the light . Nothing wrong with traction control.
So do yourself a favor an take it to a GM dealer or someother qualified repair shop .
Testimonial: "I did have a mechanic scan the vehicle for codes and he had said it was the throttle body and then he said it was the speed sensors, I guess I'll try another mechanic but that you for your answer."
SOURCE: 2008 saturn aura xe service esc comes on
My first suggestion to try for this car is to disconnect the battery, take and pull the access panel on the fuse box on the passenger side of the vehicle. Buy a pack of dilectric grease at autozone or another part store the small packets (usualy 1.27 or something) then unbolt the ground wires which are located in the fuse access towards front put grease on it and tighten down bolts again. Making sure they go completly flush on my car there was a burr in the middle of the threads and this fixed my issues. I was having random service esc, and airbag light on and various other gremlins at diffreent times. It Fixed mine it's worth a try.
SOURCE: Its me mario and the car sensor in question is 2009 saturn aura xe
What is the sensor what is the code and what the problem?
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